Rice Lake 120 Digital Weight Indicator - Manual (Page 6)

2 120 Installation Manual
1.2 Front Panel Keypad
Figure 1-1 shows the 120 keypad and LED annunciators.
The symbols shown under the keys (representing up, down, enter, left, right) describe the key functions assigned
in configuration and panel modes. In these modes, the keys are used to navigate through menus, select digits
within numeric values, and increment/decrement values. See Section 3.1.3 on page 8 for information about using
the front panel keys in configuration mode.
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C H P[ (S /U
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Figure 1-1. 120 Front Panel
1.3 LED Annunciators
The 120 display uses a set of eight LED annunciators to provide additional information about the value being
displayed:
• Gr (gross) and Nt (net) annunciators are lit to show whether the displayed weight is a gross or net weight.
• Center of zero ( ): Gross weight is within ±0.25 graduations of zero. This annunciator lights when the
scale is zeroed.
• Standstill ( ): Scale is at standstill or within the specified motion band. Some operations, including
tare functions and printing, can only be done when the standstill symbol is shown.
• lb, kg, oz, and g annunciators indicate the units associated with the displayed value: lb=pounds,
kg=kilograms, oz=ounces, g=grams.
The displayed units can also be set to short tons (tn), metric tons (t), or NONE (no units information
displayed). The
lb and kg LEDs function as primary and secondary units annunciators for some
combinations of primary and secondary units. If neither primary nor secondary units are lb, kg, oz, or g, the
lb annunciator is lit for primary units, kg for secondary units.
Table 1-1 on page 3 shows which annunciators are used for all combinations of configured primary and
secondary units. For example:
• If the primary unit is pounds (lb) and the secondary unit is kilograms (kg), the lb LED is lit for primary
units, kg for secondary units.
• If the primary unit is pounds (lb) and the secondary unit is short tons (tn), the lb LED is lit for primary
units, kg for secondary units. There is no LED for short tons, so the kg LED is used as the secondary units
annunciator.
• If the primary unit is short tons (tn) and the secondary unit is pounds (lb), the lb LED is lit for primary
units (tn), and kg is lit for secondary units (lb). Because there is no LED for short tons, the lb and kg LEDs
are used as primary and secondary units annunciators.